Refactoring of http://www.insight-journal.org/browse/publication/831
This version refactored the old SubdivisionQuadEdgeMeshFilter in the way as bellow:
- Remove recursive subdivision from each subdivision class to a new class. That's greatly simplified the implementation.
- Unified the interface. The procedure of subdivision of mesh was divided into two parts. (1). Adding new points. (2). Copy/Adding cells.
- Add edge cell based subdivision classess.